Journal of Industrial Technology (산업기술연구)

Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
권호 표지

Development of NDIR CO2 Gas Detector Using Thermopile Sensor

써모파일 센서를 이용한 NDIR CO2 가스검출기의 개발

  • 조시형 (강원대학교 전기전자공학과) ;
  • 박찬원 (강원대학교 전기전자공학과)
  • Published : 2012.02.29
Download PDF
⟨ Previous Next ⟩

Abstract

We present a novel non-dispersive infrared (NDIR) $CO_2$ gas sensor with a light source emitting collimated light. Using this thermopile, we also have successfully developed a small, sensitive NDIR $CO_2$ detector module for accurate air quality monitoring systems in energy-saving building and automotive applications. The novel sample cavity comprising specular reflectors around the light bulb is configured to uniformly emit collimated light into the entrance aperture of the cavity in order to enhance the sensitivity of NDIR $CO_2$ detector.

Keywords